By the end of the 1860s, the black baseball mecca was Philadelphia, which had an African-American population of 22,000.[5] Two former cricket players, James H. Francis and Francis Wood, formed the Pythian Base Ball Club. They played in Camden, New Jersey, at the landing of the Federal Street Ferry, because it was difficult to get permits for black baseball games in the city. Octavius Catto, the promoter of the Pythians, decided to apply for membership in the National Association of Base Ball Players, normally a matter of sending delegates to the annual convention; beyond that, a formality. At the end of the 1867 season "the National Association of Baseball Players voted to exclude any club with a black player."[1] In some ways Blackball thrived under segregation, with the few black teams of the day playing not only each other but white teams as well. "Black teams earned the bulk of their income playing white independent 'semipro' clubs."[6]

The first nationally-known black professional baseball team was founded in 1885 when three clubs, the Keystone Athletics of Philadelphia, the Orions of Philadelphia, and the Manhattans of Washington, D.C., merged to form the Cuban Giants.[10]

Because the original Cuban Giants were a popular and business success, many similarly named teams came into existence — including the Cuban X-Giants, a splinter and a powerhouse around 1900; the Genuine Cuban Giants, the renamed Cuban Giants, the Columbia Giants, the Brooklyn Royal Giants, and so on. The early "Cuban" teams were all composed of African Americans rather than Cubans; the purpose was to increase their acceptance with white patrons as Cuba was on very friendly terms with the US during those years. Beginning in 1899 several Cuban baseball teams played in North America, including the All Cubans, the Cuban Stars (West), the Cuban Stars (East), and the New York Cubans. Some of them included white Cuban players and some were Negro Leagues members.[11]

The few players on the white minor league teams were constantly dodging verbal and physical abuse from both competitors and fans. Then the Compromise of 1877 removed the remaining obstacles from the South's enacting the Jim Crow laws. To make matters worse, on July 14, 1887, Cap Anson's Chicago White Stockings were scheduled to play the Newark Giants of the International League, which had Fleet Walker and George Stovey on its roster. After Anson marched his team onto the field, military style as was his custom, he demanded that the blacks not play. Newark capitulated, and later that same day, league owners voted to refuse future contracts to blacks, citing the "hazards" imposed by such athletes.[citation needed]

In 1888, the Middle States League was formed and it admitted two all-black teams to its otherwise all-white league, the Cuban Giants and their arch-rivals, the New York Gorhams. Despite the animosity between the two clubs, they managed to form a traveling team, the Colored All Americans. This enabled them to make money barnstorming while fulfilling their league obligations. In 1890, the Giants returned to their independent, barnstorming identity, and by 1892, they were the only black team in the East still in operation on a full-time basis.

After his stint with the Gorhams, Bud Fowler caught on with a team out of Findlay, Ohio. While his team was playing in Adrian, Michigan, Fowler was persuaded by two white local businessmen, L. W. Hoch and Rolla Taylor to help them start a team financed by the Page Woven Wire Fence Company, the Page Fence Giants. The Page Fence Giants went on to become a powerhouse team that had no home field. Barnstorming through the Midwest, they would play all comers. Their success became the prototype for black baseball for years to come.

After the 1898 season, the Page Fence Giants were forced to fold because of finances. Alvin H. Garrett, a black businessman in Chicago, and John W. Patterson, the left fielder for the Page Fence Giants, reformed the team under the name of the Columbia Giants. In 1901 the Giants folded because of a lack of a place to play. Leland bought the Giants in 1905 and merged it with his Unions (despite the fact that not a single Giant player ended up on the roster), and named them the Leland Giants.[12]

The Philadelphia Giants, owned by Walter Schlichter, a white businessman, rose to prominence in 1903 when they lost to the Cuban X-Giants in their version of the "Colored Championship". Leading the way for the Cubans was a young pitcher by the name of Andrew "Rube" Foster. The following season, Schlichter, in the finest blackball tradition, hired Foster away from the Cubans, and beat them in their 1904 rematch. Philadelphia remained on top of the blackball world until Foster left the team in 1907 to play and manage the Leland Giants (Frank Leland renamed his Chicago Union Giants the Leland Giants in 1905).

Around the same time, Nat Strong, a white businessmen, started using his ownership of baseball fields in the New York City area to become the leading promoter of blackball on the East coast. Just about any game played in New York, Strong would get a cut. Strong eventually used his leverage to almost put the Brooklyn Royal Giants out of business, and then he bought the club and turned it into a barnstorming team.

When Foster joined the Leland Giants, he demanded that he be put in charge of not only the on-field activities, but the bookings as well. Foster immediately turned the Giants into the team to beat. He indoctrinated them to take the extra base, to play hit and run on nearly every pitch, and to rattle the opposing pitcher by taking them deep into the count. He studied the mechanics of his pitchers and could spot the smallest flaw, turning his average pitchers into learned craftsmen. Foster also was able to turn around the business end of the team as well, by demanding and getting 40 percent of the gate instead of the 10 percent that Frank Leland was getting.

By the end of the 1909, Foster demanded that Leland step back from all baseball operations or he (Foster) would leave. When Leland would not give up complete control, Foster quit, and in a heated court battle, got to keep the rights to the Leland Giants' name. Leland took the players and started a new team named the Chicago Giants, while Foster took the Leland Giants and started to encroach on Nat Strong's territory.

As early as 1910, Foster started talking about reviving the concept of an all-black league. The one thing he was insistent upon was that black teams should be owned by black men. This put him in direct competition with Strong. After 1910, Foster renamed his team the Chicago American Giants to appeal to a larger fan base. During the same year, J. L. Wilkinson started the All Nations traveling team. The All Nations team would eventually become one of the best-known and popular teams of the Negro leagues, the Kansas City Monarchs.

On April 6, 1917, the United States entered World War I. Manpower needed by the defense plants and industry accelerated the migration of blacks from the South to the North. This meant a larger and more affluent fan base with more money to spend. By the end of the war in 1919, Foster was again ready to start a Negro baseball league.

On May 2, 1920, the Indianapolis ABCs beat the Chicago American Giants (4–2) in the first game played in the inaugural season of the Negro National League, played at Washington Park in Indianapolis.[14] But, because of the Chicago Race Riot of 1919, the National Guard still occupied the Giants' home field, Schorling's Park (formerly South Side Park). This forced Foster to cancel all the Giants' home games for almost a month and threatened to become a huge embarrassment for the league. On March 2, 1920 the Negro Southern League was founded in Atlanta, Georgia.[15] In 1921, the Negro Southern League joined Foster's National Association of Colored Professional Base Ball Clubs. As a dues-paying member of the association, it received the same protection from raiding parties as any team in the Negro National League.

Foster then admitted John Connors' Atlantic City Bacharach Giants as an associate member to move further into Nat Strong's territory. Connors, wanting to return the favor of helping him against Strong, raided Ed Bolden's Hilldale Daisies team. Bolden saw little choice but to team up with Foster's nemesis, Nat Strong. Within days of calling a truce with Strong, Bolden made an about-face and signed up as an associate member of Foster's Negro National League.

On December 16, 1922, Bolden once again shifted sides and, with Strong, formed the Eastern Colored League as an alternative to Foster's Negro National League, which started with six teams: Atlantic City Bacharach Giants, Baltimore Black Sox, Brooklyn Royal Giants, New York Cuban Stars, Hilldale, and New York Lincoln Giants.[16] The National League was having trouble maintaining continuity among its franchises: three teams folded and had to be replaced after the 1921 season, two others after the 1922 season, and two more after the 1923 season. Foster replaced the defunct teams, sometimes promoting whole teams from the Negro Southern League into the NNL. Finally Foster and Bolden met and agreed to an annual Negro League World Series beginning in 1924.

1925 saw the St. Louis Stars come of age in the Negro National League. They finished in second place during the second half of the year due in large part to their pitcher turned center fielder, Cool Papa Bell, and their shortstop, Willie Wells. A gas leak in his home nearly asphyxiated Rube Foster in 1926, and his increasingly erratic behavior led to him being committed to an asylum a year later. While Foster was out of the picture, the owners of the National League elected William C. Hueston as new league president. In 1927, Ed Bolden suffered a similar fate as Foster, by committing himself to a hospital because the pressure was too great. The Eastern League folded shortly after that, marking the end of the Negro League World Series between the NNL and the ECL.

After the Eastern League folded following the 1927 season, a new eastern league, the American Negro League, was formed to replace it. The makeup of the new ANL was nearly the same as the Eastern League, the exception being that the Homestead Grays joined in place of the now-defunct Brooklyn Royal Giants. The ANL lasted just one season. In the face of harder economic times, the Negro National League folded after the 1931 season. Some of its teams joined the only Negro league then left, the Negro Southern League.

On March 26, 1932 the Chicago Defender announced the end of Negro National League.[17]

Just as Negro league baseball seemed to be at its lowest point and was about to fade into history, along came Cumberland Posey and his Homestead Grays. Posey, Charlie Walker, John Roesnik, George Rossiter, John Drew, Lloyd Thompson and L.R. Williams got together in January 1932 and founded the East-West League. Eight cities were included in the new league: "Pittsburgh, Philadelphia, Detroit, Baltimore, Cleveland, Newark, New York, and Washington D.C.".[18] By May 1932, the Detroit Wolves were about to collapse, and instead of letting the team go, Posey kept pumping money into it. By June the Wolves had disintegrated and all the rest of the teams, except for the Grays, were beyond help, so Posey had to terminate the league.

Across town from Posey, Gus Greenlee, a reputed gangster and numbers runner, had just purchased the Pittsburgh Crawfords. Greenlee's main interest in baseball was to use it as a way to launder money from his numbers games. But, after learning about Posey's money-making machine in Homestead, he became obsessed with the sport and his Crawfords. On August 6, 1931, Satchel Paige made his first appearance as a Crawford. With Paige on his team, Greenlee took a huge risk by investing $100,000 in a new ballpark to be called Greenlee Field. On opening day, April 30, 1932, the pitcher-catcher battery was made up of the two most marketable icons in all of blackball: Satchel Paige and Josh Gibson.

In 1933, Greenlee, riding the popularity of his Crawfords, became the next man to start a Negro league. In February 1933, Greenlee and delegates from six other teams met at Greenlee's Crawford Grill to ratify the constitution of the National Organization of Professional Baseball Clubs. The name of the new league was the same as the old league Negro National League which had disbanded a year earlier in 1932.[19] The members of the new league were the Pittsburgh Crawfords, Columbus Blue Birds, Indianapolis ABCs, Baltimore Black Sox, Brooklyn Royal Giants, Cole's American Giants (formerly the Chicago American Giants) and Nashville Elite Giants. Greenlee also came up with the idea to duplicate the Major League Baseball All-Star Game, except, unlike the big league method in which the sportswriters chose the players, the fans voted for the participants. The first game, known as the East-West All-Star Game, was held September 10, 1933 at Comiskey Park in Chicago before a crowd of 20,000.[20]

With the JapaneseAttack on Pearl Harbor on December 7, 1941, the United States was thrust into World War II. Remembering World War I, black America vowed it would not be shut out of the beneficial effects of a major war effort: economic boom and social unification.

Judge Kenesaw M. Landis, the first Commissioner of Major League Baseball, was an intractable opponent of integrating the white majors. During his quarter-century tenure, he blocked all attempts at integrating the game. A popular story has it that in 1943, Bill Veeck planned to buy the moribund Philadelphia Phillies and stock them with Negro League stars. Supposedly, when Landis and National League president Ford Frick learned of Veeck's plan, they scuttled it by engineering the Phillies' sale to William B. Cox. However, this story is arguably false, based on press accounts of the time; notably, Philadelphia's black press mentioned nothing about any prospective Veeck purchase.[23]

After Landis' death in 1944, Happy Chandler was named his successor. Chandler was open to integrating the game, even at the risk of losing his job as Commissioner. He later said in his biography that he could not in good conscience tell black players they couldn't play baseball with whites when they'd fought for their country.

On August 28, 1945, Jackie Robinson met with Rickey in Brooklyn, where Rickey gave Robinson a "test" by berating him and shouting racial epithets that Robinson would hear from day one in the white game. Having passed the test, Robinson signed the contract which stipulated that from then on, Robinson had no "written or moral obligations"[24] to any other club. By the inclusion of this clause, precedent was set that would raze the Negro leagues as a functional commercial enterprise.

To throw off the press and keep his intentions hidden, Rickey got heavily involved in Gus Greenlee's newest foray into black baseball, the United States League. Greenlee started the league in 1945 as a way to get back at the owners of the Negro National League teams for throwing him out. Rickey saw the opportunity as a way to convince people that he was interested in cleaning up blackball, not integrating it. In midsummer 1945, Rickey, almost ready with his Robinson plan, pulled out of the league. The league folded after the end of the 1946 season.

Early in 1946, Rickey signed four more black players, Campanella, Newcombe, John Wright and Roy Partlow, this time with much less fanfare. After the integration of the major leagues in 1947, marked by the appearance of Jackie Robinson with the Brooklyn Dodgers that April, interest in Negro league baseball waned. Black players who were regarded as prospects were signed by major league teams, often without regard for any contracts that might have been signed with Negro league clubs. Negro league owners who complained about this practice were in a no-win situation: they could not protect their own interests without seeming to interfere with the advancement of players to the majors. By 1948, the Dodgers, along with Veeck's Cleveland Indians had integrated.

The Negro leagues also "integrated" around the same time, as Eddie Klep became the first white man to play for the Cleveland Buckeyes during the 1946 season.

These moves came despite strong opposition from the owners; Rickey was the only one of the 16 owners to support integrating the sport in January 1947. Chandler's decision to overrule them may have been a factor in his ouster in 1951 in favor of Ford Frick.

Some proposals were floated to bring the Negro leagues into "organized baseball" as developmental leagues for black players, but that was recognized as contrary to the goal of full integration. So the Negro leagues, once among the largest and most prosperous black-owned business ventures, were allowed to fade into oblivion.

First a trickle and then a flood of players signed with Major League Baseball teams. Most signed minor league contracts and many languished, shuttled from one bush league team to another despite their success at that level. But they were in Organized Baseball, that part of the industry organized by the major leagues.

The Negro National League folded after the 1948 season when the Grays withdrew to resume barnstorming, the Eagles moved to Houston, Texas, and the New York Black Yankees folded. The Grays folded one year later after losing $30,000 in the barnstorming effort. So the Negro American League was the only "major" Negro League operating in 1949. Within two years it had been reduced to minor league caliber and it played its last game in 1958.

The last All-Star game was held in 1962, and by 1966 the Indianapolis Clowns were the last Negro league team still playing. The Clowns continued to play exhibition games into the 1980s, but as a humorous sideshow rather than a competitive sport.

While organized leagues were common in black baseball, there were only seven leagues that are considered to be of the top quality of play at the time of their existence. None materialized prior to 1920 and by 1950, due to integration, they were in decline. Even though teams were league members, most still continued to barnstorm and play non-league games against local or semi-pro teams. Those games, sometimes approaching 100 per season, did not count in the official standings or statistics. However, some teams were considered "associate" teams and games played against them did count, but an associate team held no place in the league standings.

Negro American League, 1937–1960 or so; after 1950, the league and its teams operated after a fashion, mostly as barnstorming units, but historians have a hard time deciding when the league actually came to an end.

Eventually, some teams were able to survive and even profit by barnstorming small towns and playing local semi-pro teams as well as league games.

Early Negro leagues were unable to attract and retain top talent due to financial, logistical and contractual difficulties. Some early dominant teams did not join a league since they could pull in larger profits independently. The early leagues were specifically structured as minor leagues. With the integration of Organized Baseball, beginning 1946, all leagues simply lost elite players to white leagues, and historians do not consider any Negro league "major" after 1950.

At least ten leagues from the major-league era (post-1900) are recognized as Negro minor leagues, as is the one of two 1940s majors that continued after 1950:

† The Negro Southern League was considered a de facto major league in 1932 because it was the only league to play a full season schedule, and many players (and a few teams) from the original Negro National League played there. A new Negro National League was established in traditionally "major" cities for 1933, also attracting the elite players and teams from the NSL.

‡ The Negro American League is considered a major league from 1937 until integration diminished the quality of play around 1950. Riley's Biographical Encyclopedia draws the line between 1950 and 1951.

In his Baseball Hall of Fame induction speech in 1966, Ted Williams made a strong plea for inclusion of Negro league stars in the Hall. After the publication of Robert Peterson's landmark book Only the Ball was White in 1970, the Hall of Fame found itself under renewed pressure to find a way to honor Negro league players who would have been in the Hall had they not been barred from the major leagues due to the color of their skin.

At first, the Hall of Fame planned a "separate but equal" display, which would be similar to the Ford C. Frick Award for baseball commentators, in that this plan meant that the Negro league honorees would not be considered members of the Hall of Fame. This plan was criticized by the press, the fans and the players it was intended to honor, and Satchel Paige himself insisted that he would not accept anything less than full-fledged induction into the Hall of Fame. The Hall relented and agreed to admit Negro league players on an equal basis with their Major League counterparts in 1971. A special Negro league committee selected Satchel Paige in 1971, followed by (in alphabetical order) Cool Papa Bell, Oscar Charleston, Martín Dihigo, Josh Gibson, Monte Irvin, Judy Johnson, Buck Leonard and John Henry Lloyd. (Of the nine, only Irvin and Paige spent any time in the major leagues.) The Veterans Committee later selected Ray Dandridge, as well as choosing Rube Foster on the basis of meritorious service.

Other members of the Hall who played in both the Negro leagues and Major League Baseball are Hank Aaron, Ernie Banks, Roy Campanella, Larry Doby, Willie Mays, and Jackie Robinson. Except for Doby, their play in the Negro leagues was a minor factor in their selection: Aaron, Banks, and Mays played in Negro leagues only briefly and after the leagues had declined with the migration of many black players to the integrated minor leagues; Campanella (1969) and Robinson (1962) were selected before the Hall began considering performance in the Negro leagues.

The committee reviewed the careers of 29 Negro league and 10 Pre-Negro league candidates. The list of 39 had been pared from a roster of 94 candidates by a five-member screening committee in November, 2005. The voting committee was chaired by Fay Vincent, Major League Baseball's eighth Commissioner and an Honorary Director of the National Baseball Hall of Fame and Museum.

Malloy, Jerry (2005). Out of the Shadows: African American Baseball from the Cuban Giants to Jackie Robinson. Lincoln: University of Nebraska Press.|first1= missing |last1= in Editors list (help);|first2= missing |last2= in Editors list (help)

Ribowsky, Mark (1995). A Complete History of the Negro Leagues. Carol Publishing Group.

Carroll, Brian (2007). When to Stop the Cheering?: The Black Press, the Black Community, and the Integration of Professional Baseball. Studies in African American history and culture. New York: Routledge. p. 271. ISBN978-0-415-97938-2.

Nelson, Kadir (2008). We Are the Ship: The Story of Negro League Baseball. Jump at the Sun/Hyperion. 2008 winner of CASEY Award for best baseball book.

Peterson, Robert (1992) [First published 1970]. Only the Ball Was White: A History of Legendary Black Players and All-Black Professional Teams (reprint, illustrated ed.). New York: Oxford University Press. p. 406. ISBN0-19-507637-0.

White, Sol; Malloy, Jerry (1995) [First published 1907 as Sol. White's Official Base Ball Guide]. Sol White's History of Colored Base Ball, with Other Documents on the Early Black Game, 1886–1936. Compiled and introduced by Jerry Malloy (Revised ed.). University of Nebraska Press. p. 187. ISBN0-8032-9783-1.